FIR Fit参数子选项字段和按钮
Redo Fit（重新拟合）：重新进行FIR设定和拟合。
Initialize Parametric（初始化参数）：使用这些参数近似作为parametric fit（参数拟合）的初始输入。结果和约束都被复制到Parametric Fit（参数拟合）选项卡窗口。
Row Headings（行标题）：输入和中间变量。
Column Headings（列标题）：输出。
Ramp（斜坡）：将输出配置为斜坡。
每个单元格的内容
Model Type（模型类型）：该列表框显示了FIR Fit Plots子选项卡上当前选中的模型类型。
Model Parameters and Constraints（模型参数和约束）：显示的参数量取决于所设置的模型类型。在每个单元格中也显示了参数值和高低限。与该输入—输出组相对应的拟合统计在每个单元格表的底行显示。
此窗口提供的一些其他选项：
Parameter Constraints（参数约束）：通过适当地更改上下限值，对参数设置约束。 FIR和PAR模型将实时更新为F2P模型上实施的这些新限制。
参数拟合
对此窗口中的数据执行参数拟合（请参见第35页的“直接参数化模型辨识”）。需要注意的是，通过前一个选项卡上的FIR拟合对数据的参数拟合给出良好的初始估计是非常重要的。
Parametric Fit（参数拟合）窗口布局类似于Pre-Fit（预拟合）下的Parameters（参数）子选项卡。此选项卡有两种显示模式：
•Setup Mode（设置模式）：单元格可更改，不会变灰。在此模式下，你可以执行参数拟合。Low和High值对应于适用于拟合的低限和高限。此模式中的参数值可用作初始猜测。

原文：
FIR Fit Parameters Subtab Fields and Buttons
Redo Fit: Redo the FIR setup and fitting.
Initialize Parametric: Use these parametric approximations as initial inputs for the parametric fit. The results and constraints are copied to the Parametric Fit tab window.
Row Headings: Inputs and intermediates.
Column Headings: Outputs.
**Ramp: **Confirms the output is a ramp.
Contents of each cell
**Model Type: **The list box displays the current type of model selected on the FIR Fit Plots subtab.
**Model Parameters and Constraints: **The number of parameters displayed depends on the set model type. Parameter values and the high and low limits are shown in each cell. The Fit Stat corresponding to that input-output pair is shown in the bottom row of each cell table.
Some of the other options available in this window:
Parameter Constraints: Place constraints on parameters by changing the appropriate low and high limit values. The FIR to PAR model will immediately be updated with these new limits enforced on the F2P model.
Parametric Fit
You perform parametric fit on the data in this window (refer to “Direct Parametric Model Identification” on page 35). It is important that a good initial estimate be given to a parametric fit of data by making a FIR Fit on the previous tab.
The Parametric Fit window layout is similar to the Parameters subtab under Pre-Fit. There are two modes of display for this tab:
**•Setup Mode: **The cells are available for changes and are not grayed out. In this mode you can perform a parametric fit. The Low and High values correspond to low and high limits applicable to the fit. The parameter value in this mode can serve as the initial guess.
**•Results Mode: **All cells display the results of the fit but none can be changed.This mode displays after results are obtained from the AIDAPro engine. The 95% Low and 95% High values correspond to the computed 95 percent confidence bands on the parameters.
Parametric Fit Window Fields
**Fit/New Fit: **• Perform a fit if the window is in setup mode(cells are not grayed out).
• Perform a new fit by changing the current mode from results mode to setup mode.
**Row Headings: **Inputs and Intermediates.
Column Headings: Outputs.
Ramp: Confirms the output is a ramp.
**Contents of each cell: **All the cells have two display modes – Setup and Results modes.

2016.11.20